COMPUTER VISION APPLICATIONS TO THE STUDY OF SEA-ICE MOTION IN ANTARCTICA
Abstract – The motion of sea-ice in Antarctica is studied using QuikSCAT scatterometer imagery using methods from computer vision and image processing such as intensity edges and optical flow (OF). Features are computed as differential invariants based on spatial and temporal derivatives various sca...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.391.7295 2023-05-15T13:48:49+02:00 COMPUTER VISION APPLICATIONS TO THE STUDY OF SEA-ICE MOTION IN ANTARCTICA Salvador Gutiérrez David G. Long The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.391.7295 http://www.mers.byu.edu/long/papers/conf/IGARSS2002JuneGutierrez.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.391.7295 http://www.mers.byu.edu/long/papers/conf/IGARSS2002JuneGutierrez.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.mers.byu.edu/long/papers/conf/IGARSS2002JuneGutierrez.pdf text ftciteseerx 2016-01-08T02:17:17Z Abstract – The motion of sea-ice in Antarctica is studied using QuikSCAT scatterometer imagery using methods from computer vision and image processing such as intensity edges and optical flow (OF). Features are computed as differential invariants based on spatial and temporal derivatives various scales. The first estimates of the motion vector field obtained through optical flow are used as the starting point for a regularization scheme that imposes constraints that bring the estimate closer to feature tracking results and observed motion. Constraints from fluid dynamics are brought in by separating the motion field into its divergence free and rotational free components with another field obtained through a convex combination of these components. The advantages of this approach are that it produces a dense motion field that can be globally processed and locally adjusted to fit data and a model. This study complements the analysis of sea ice motion by application of wavelet theory. I. Text Antarc* Antarctica Sea ice Unknown |
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ftciteseerx |
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English |
description |
Abstract – The motion of sea-ice in Antarctica is studied using QuikSCAT scatterometer imagery using methods from computer vision and image processing such as intensity edges and optical flow (OF). Features are computed as differential invariants based on spatial and temporal derivatives various scales. The first estimates of the motion vector field obtained through optical flow are used as the starting point for a regularization scheme that imposes constraints that bring the estimate closer to feature tracking results and observed motion. Constraints from fluid dynamics are brought in by separating the motion field into its divergence free and rotational free components with another field obtained through a convex combination of these components. The advantages of this approach are that it produces a dense motion field that can be globally processed and locally adjusted to fit data and a model. This study complements the analysis of sea ice motion by application of wavelet theory. I. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Salvador Gutiérrez David G. Long |
spellingShingle |
Salvador Gutiérrez David G. Long COMPUTER VISION APPLICATIONS TO THE STUDY OF SEA-ICE MOTION IN ANTARCTICA |
author_facet |
Salvador Gutiérrez David G. Long |
author_sort |
Salvador Gutiérrez |
title |
COMPUTER VISION APPLICATIONS TO THE STUDY OF SEA-ICE MOTION IN ANTARCTICA |
title_short |
COMPUTER VISION APPLICATIONS TO THE STUDY OF SEA-ICE MOTION IN ANTARCTICA |
title_full |
COMPUTER VISION APPLICATIONS TO THE STUDY OF SEA-ICE MOTION IN ANTARCTICA |
title_fullStr |
COMPUTER VISION APPLICATIONS TO THE STUDY OF SEA-ICE MOTION IN ANTARCTICA |
title_full_unstemmed |
COMPUTER VISION APPLICATIONS TO THE STUDY OF SEA-ICE MOTION IN ANTARCTICA |
title_sort |
computer vision applications to the study of sea-ice motion in antarctica |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.391.7295 http://www.mers.byu.edu/long/papers/conf/IGARSS2002JuneGutierrez.pdf |
genre |
Antarc* Antarctica Sea ice |
genre_facet |
Antarc* Antarctica Sea ice |
op_source |
http://www.mers.byu.edu/long/papers/conf/IGARSS2002JuneGutierrez.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.391.7295 http://www.mers.byu.edu/long/papers/conf/IGARSS2002JuneGutierrez.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766249813778628608 |